PCD4.M170: Port 0 doesn't work?

After import a PCD4.M145 project on a PCD4.M170, the port 0 doesn't work anymore.

The PCD4.M170 doesn't have the posibility like the PCD2.M170 to use the port 0 in RS 485 only in RS 232. Because those 2 PCD have the same FW, in order to use the port 0 on a PCD4.M170 in RS 232, it has to be configured:

In IL, the SOCL instruction is necessary

In Fupla, in the SASI Slave Fbox choose RS Typ RS 232 (not default)